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Oduvanchick [21]
3 years ago
9

A patient with osteoporosis (reduced bone mass) may have a history of health issues. One issue could be

Biology
1 answer:
Rasek [7]3 years ago
3 0

Answer:

not enough skin exposure to the sun to make Vitamin D.

Explanation:

The correct answer would be <u>not enough skin exposure to the sun to make Vitamin D.</u>

The body makes vitamin D by being exposed to the sun and this vitamin and its metabolite are quite important in the homeostasis of calcium. Calcium on its own is very essential to the formation of bones in the body.

<em>Hence, when the skin is not adequately exposed to the sun, the body becomes short of vitamin D and this disrupts the homeostasis of calcium and the formation of bones in the body. Thus, osteoporosis, also known as weak bones, may result. </em>

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This question would be better placed under the Chemestry section
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What is NOT a method used to
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making hole in the same to get the new DNA into the cell

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How many chromosomes are in an adult wild mouses sperm cell?
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There is 20 chromosomes in a adult wild mouse
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A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
The biotic elements of an eco system include all of the following except?
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